Global variables beginning with \01 have special meaning on Darwin, so we need to remove

the name prefix when we change them from internal to external.  This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53236 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index ca8a279..776922a 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -262,8 +262,11 @@ Module *llvm::SplitFunctionsOutOfModule(Module *M,
   for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
     I->setLinkage(GlobalValue::ExternalLinkage);
   for (Module::global_iterator I = M->global_begin(), E = M->global_end();
-       I != E; ++I)
+       I != E; ++I) {
+    if (I->hasName() && *I->getNameStart() == '\01')
+      I->setName(I->getNameStart()+1, I->getNameLen()-1);
     I->setLinkage(GlobalValue::ExternalLinkage);
+  }
 
   Module *New = CloneModule(M);